A United Launch Alliance (ULA) Atlas V rocket (Atlas V 551 (RL10C-1-1)/GEM-63) was launched at 1247 GMT on 10 September 2022 on flight number AV 551 from Cape Canaveral SLC-41. The mission is a – flight number AV-102, carrying the secret NRO L-107 mission for the National Reconnaissance Office and the US Space Force (USSF). The mission is thought to be a three satellite in-orbit space situation/electronic intelligence mission spying on other spacecraft in the geostationary belt and is dubbed “Silent Barker”.
Atlas V 551 launches NRO L-107 “Silent Barker” mission. Courtesy: ULA
